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fuel pressure question

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Old Aug 10, 2013 | 04:35 PM
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Default fuel pressure question
what is the norm for pressure on a 01 ls1 stock fuel system? when i hooked the gauge up and turned key on it was around 30. with it running it was 55-58 and under load dropped to 50 or so. is this a issue with my mods? should it hold steady under load?
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Old Aug 10, 2013 | 04:46 PM
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Ideally it should hold steady, but a 5-8 psi should be okay. Mine drops about that much, and I have a built HCI LQ9 with a 100 shot to boot
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Old Aug 10, 2013 | 04:54 PM
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could it maybe be a sign that injectors are maxed and not able to get the fuel it needs?
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Old Aug 10, 2013 | 05:18 PM
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Well maybe, but in my case for example I have 42 lb injectors, so the drop is coming from somewhere else for me
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Old Aug 10, 2013 | 05:53 PM
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Originally Posted by jt_2002_ta
what is the norm for pressure on a 01 ls1 stock fuel system? when i hooked the gauge up and turned key on it was around 30. with it running it was 55-58 and under load dropped to 50 or so. is this a issue with my mods? should it hold steady under load?
stock should be in that area 58psi give or take.340 walbro intank here 60-62psi. here.stocker might be goin out.
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